FirstNet Long Term Evolution (LTE) networks distinct layers

Core Network

FirstNet is responsible for building the enhanced packet core network, a key component for ensuring that users have a single interoperable platform nationwide. The core network has six primary functions: it switches data, processes and reformats information, stores and maintains data and keeps it secure. Applications and services and operational and business support systems also reside in the core network. The core will interface with other state, local and federal networks, including 911 and the Internet. Essentially, the core serves as a giant umbrella covering all of the United States including the territories and the District of Columbia. The core is connected to radio access networks in each state via the backhaul layer of the network.

 

Enhanced packet core

Transport Backhaul

These are the links that carry user traffic, such as voice, data and video, and signaling from the radio base stations to the core network. Learn more